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September Weather in Puerto Cisnes, Chile

Last updated: August 22, 2025

In September, the average temperature in Puerto Cisnes, Chile hovers around 4°C (39°F). During this time, you might experience a chilly minimum of -6°C (21°F), while the maximum can reach a mild 16°C (61°F). Prepare for frequent rain, as precipitation totals about 386 mm (15.2 in) over 23 days, and stay cozy with an average humidity of 88%.

September Temperature in Puerto Cisnes

In September in Puerto Cisnes, the average temperature is 4°C (39°F). Maximums can reach 16°C (61°F), while minimums can drop as low as -6°C (21°F). Be sure to pack layers to stay comfortable during your travels, as temperatures can vary significantly throughout the day.

September Weather in Puerto Cisnes: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Puerto Cisnes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Puerto Cisnes, September typically has an average temperature of 4°C (39°F), with highs reaching up to 16°C (61°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec535551474235353739414852
Data source: Temperature data for Puerto Cisnes generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Puerto Cisnes

In Puerto Cisnes in September, the total precipitation amount is 386 mm (15.2 in) spread over 23 days.

September Precipitation Trends in Puerto Cisnes

The chart displays monthly precipitation patterns in Puerto Cisnes, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Puerto Cisnes, September typically receives around 386 mm (15.2 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec265191291382458572451491386379326289
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Puerto Cisnes

In Puerto Cisnes in September, humidity is 88%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to stay warm.

September Average Humidity in Puerto Cisnes

This chart illustrates the average monthly humidity levels in Puerto Cisnes, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Puerto Cisnes is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%88%86%89%89%89%89%89%88%86%85%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Puerto Cisnes

In Puerto Cisnes in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Puerto Cisnes, you can refer to this Hourly UV Index in Puerto Cisnes.

Maximum UV Index Levels in Puerto Cisnes for September

The chart shows the monthly maximum UV Index (UVI) for Puerto Cisnes in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Puerto Cisnes typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1311853234691213
Data source: Puerto Cisnes September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Puerto Cisnes Compares to Other Months

Weather in Puerto Cisnes varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Puerto Cisnes, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Puerto Cisnes, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (53°F)265 mm (10.4 inches)85%extreme
February Weather13°C (55°F)191 mm (7.5 inches)88%extreme
March Weather10°C (51°F)291 mm (11.5 inches)86%very high
April Weather8°C (47°F)382 mm (15.1 inches)89%moderate
May Weather5°C (42°F)458 mm (18.0 inches)89%moderate
June Weather2°C (35°F)572 mm (22.5 inches)89%low
July Weather2°C (35°F)451 mm (17.8 inches)89%moderate
August Weather3°C (37°F)491 mm (19.3 inches)89%moderate
September Weather4°C (39°F)386 mm (15.2 inches)88%high
October Weather5°C (42°F)379 mm (14.9 inches)86%very high
November Weather9°C (48°F)326 mm (12.8 inches)84%extreme
December Weather11°C (53°F)289 mm (11.4 inches)86%extreme

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